The AWS Storage Gateway service enables hybrid storage between on-premises environments and
the AWS Cloud. The Gateway Virtual Tape Library can be used with popular backup software
such as NetBackup, Backup Exec and Veeam. Uses a virtual media changer and tape drives
There is no such thing as a Backup Gateway in the AWS products
File gateway provides a virtual on-premises file server, which enables you to store and
retrieve files as objects in Amazon S3
The volume gateway represents the family of gateways that support block-based volumes,
previously referred to as gateway-cached and gateway-stored modes